Years ago I was taking a college course in electronics drafting and the school had a software program written by a previous student. Often it would be corrupted when I would go to use it. Then I overheard a young man boasting to another student how his 'edits' were erased each night with a backup copy. I was in my mid 30s and paying good money and work for my education. I walked over the young man and told him that if he ever screwed with the software again I would break his fingers for him. Or I would turn him to the instructor which would be worse as the instructor was a real macho man to the point of having a chin-up bar installed over his door to challenge young men as to who could do more chin-ups. Mr. W rarely lost. The kid never messed with the software again.